magento-test/app/code/Magento/Review/Test/Mftf/ActionGroup/AdminApproveAllReviewsActionGroup.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->
<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
    <actionGroup name="AdminApproveAllReviewsActionGroup">
        <selectOption selector="{{AdminReviewGridSection.massActions}}" userInput="selectAll" stepKey="selectAll"/>
        <selectOption selector="{{AdminReviewGridSection.massActionsSelect}}" userInput="Update Status" stepKey="clickUpdateStatusActionDropdown"/>
        <waitForElementVisible selector="{{AdminReviewGridSection.massActionsStatus}}" stepKey="waitForVisibleStatusDropdown"/>
        <selectOption selector="{{AdminReviewGridSection.massActionsStatus}}" userInput="1" stepKey="clickApprovedActionDropdown"/>
        <click selector="{{AdminReviewGridSection.submit}}" stepKey="clickSubmit"/>
        <see selector="{{AdminMessagesSection.success}}" userInput="record(s) have been updated." stepKey="seeSuccessMessage"/>
    </actionGroup>
</actionGroups>